Duramax Plus Package

Duramax® Plus Package

  • Duramax® 6.6L Turbo-Diesel V8 engine
  • Allison® 1000 6-speed automatic transmission
  • 3.73 rear axle ratio
  • Engine block heater
  • Front and rear park assist
  • Bose® premium audio system
  • 8" Diagonal Color Touch Screen Navigation with GMC Infotainment1
. 1 GMC Infotainment functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.